/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncCore/Source/ConcertSyncCore/Public/ConcertSyncSessionDatabase.h
GetTransactionEvent).
bool AddTransactionActivity ( const [FConcertSyncTransactionActivity](API\Plugins\ConcertSyncCore\FConcertSyncTransactionActivity) & InTransactionActivity, int64 & OutActivityId, int64 & OutTransactionEventId )